Getting started
Turning 65 Houston TX: Your Medicare Enrollment Window
Turning 65 in Houston starts a Medicare clock, ready or not. You get a seven-month Initial Enrollment Period: three months before your birthday month, the birthday month itself, and three months after. Miss it and you could face a late penalty that follows you for years.
Enroll in the three months before your birthday and Part A and Part B start the first day of your birthday month. Wait too long and your start date slides. That's why we tell Houston clients, from Midtown to Sugar Land, to start planning at 64 and a half.
- A 7-month Initial Enrollment Period
- Different rules if you're still working
- One guaranteed Medigap window, once
- Free, local guidance, no pressure

Your dates
See your Houston enrollment timeline
Find your Medicare enrollment period
Enter your date of birth and get your Initial Enrollment Period, the month to apply, your likely start date, and what to check if you're still working. A licensed agent can then walk through it with you by phone or at our Houston office.
Timeline
What to handle, and by when
- 1
3 to 6 months before your birthday
Decide whether to start Part B now or delay it because of active employer coverage. Start building a list of your doctors and prescriptions, whether you see a Texas Medical Center specialist or a clinic near you.
- 2
3 months before
Enroll in Part A and Part B through Social Security if you haven't started benefits already. If you have, your Medicare card shows up automatically.
- 3
2 months before
Pick your path: Original Medicare paired with Medigap and Part D, or a Medicare Advantage plan. Check that your doctors and drugs are covered before you commit.
- 4
1 month before
Submit your application so your cards arrive before coverage starts. Confirm your current coverage won't lapse in the gap.
- 5
After your birthday
Your six-month Medigap open enrollment window starts the day Part B begins. Use it. It's the only stretch where a health condition can't get you turned down.
Still working?
An employer plan changes your timeline
Plenty of Houston residents, especially those still tied to the energy sector or the Port of Houston, keep working well past 65. If your employer plan covers 20 or more employees, you can usually delay Part B without a penalty and keep your work coverage. Most people still sign up for Part A since it's typically free, unless you're contributing to an HSA, since enrolling in any part of Medicare stops those contributions.
Once employment ends, an eight-month Special Enrollment Period opens for Part B. COBRA and retiree coverage do not stretch that window. Getting this wrong is the costliest mistake we see, and you can estimate the damage yourself with our Part B penalty calculator.
Small employers work differently
If your employer has fewer than 20 workers, Medicare usually becomes primary at 65, and delaying Part B can leave real gaps in your coverage. Check with your HR office before you decide anything.
Choosing
Two paths once you're enrolled
- Original Medicare plus Medigap plus Part D: nearly any doctor who takes Medicare, a higher monthly premium, predictable costs
- Medicare Advantage: lower premium, a defined network, copays as you go, sometimes dental and vision included
- Both routes still require your monthly Part B premium
- Compare both, at no cost, with a local independent agent before you pick
Read more on Medigap and Medicare Advantage, or work through the Medicare checklist first.
Get your Houston enrollment timeline reviewed
Our Houston team will confirm your dates, tell you whether your employer coverage lets you delay Part B safely, and explain both coverage paths. No cost, no obligation to enroll.
Houston Senior Insurance
Licensed Texas insurance agency · Houston, TX
Licensing, carriers and how we work →- Independent agency serving Harris County since 2009
- AHIP Medicare certified, renewed every year
- Advantage, Medigap, Part D and final expense under one roof
- No cost for our help, and no pressure to switch
- Office, phone and at-home appointments across Greater Houston
Written and reviewed by the licensed Medicare team at Houston Senior Insurance, Licensed Texas insurance agency. Last reviewed: August 2026.
Turning 65 in Houston this year?
We'll map your dates, check your doctors and lay out both coverage paths. Free, and no obligation to enroll.